超临界水中高碳Domanik碳酸盐-硅质岩有机质在供氢剂和Ni-Fe催化剂存在下的热降解

IF 1.1 4区 工程技术 Q3 CHEMISTRY, ORGANIC
G. P. Kayukova, Z. R. Nasyrova, A. N. Mikhailova, Ya. V. Onishchenko, A. V. Vakhin
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引用次数: 0

摘要

研究了四氢萘和1-丙醇,以及Ni-Fe催化剂与1-丙醇复合对roashkino油田碳酸硅质岩有机质在超临界水中(温度为374°С,压力为18 ~ 24 MPa)热降解的影响。与四氢化萘相比,1-丙醇在超临界水中更有效地影响干酪根降解,抑制焦化。在有1-丙醇存在的情况下,有机物的烷基链降解形成饱和烃的反应最为强烈。在Ni-Fe催化剂的作用下,将1-丙醇引入反应体系,在较小程度上促进了干酪根对液态石油馏分的降解,但激活了缩合反应,导致大量羰基/羰基和焦炭的形成。根据在反应体系中引入各种添加剂的不同,在树脂的结构-基团组成中观察到最显著的差异,随着其结构缩合程度的降低,СН3/СН2基团的比例降低,含氧S=O, С=О和О -Н基团的含量增加。与树脂相比,沥青烯的芳香度和缩合度由于环结构中氢原子数量的增加而增加。在所有实验中沥青质和树脂的一个共同趋势是羟基О -Н基团含量的增加。碳烯/碳化合物的特点是脂肪族CH2、CH3和含氧СО基团含量较低,芳香性和缩合性高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Thermal Degradation of the Organic Matter of High-Carbon Domanik Carbonate–Siliceous Rock in Supercritical Water in the Presence of Hydrogen Donors and Ni–Fe Catalyst

Thermal Degradation of the Organic Matter of High-Carbon Domanik Carbonate–Siliceous Rock in Supercritical Water in the Presence of Hydrogen Donors and Ni–Fe Catalyst

Thermal Degradation of the Organic Matter of High-Carbon Domanik Carbonate–Siliceous Rock in Supercritical Water in the Presence of Hydrogen Donors and Ni–Fe Catalyst

The effect of hydrogen donors, tetralin and 1-propanol, and of the Ni–Fe catalyst in combination with 1-propanol on the thermal degradation of the organic matter of the carbonate–siliceous rock from the Romashkino field with 7.07% Corg content in supercritical water at 374°С and pressures from 18 to 24 MPa was revealed. 1-Propanol, compared to tetralin, influences the kerogen degradation in supercritical water more efficiently and suppresses the coking. The degradation of alkyl chains of the organic matter to form saturated hydrocarbons occurs in the presence of 1-propanol most intensely. Introduction of 1-propanol into the reaction system in combination with the Ni–Fe catalyst initiates the kerogen degradation to liquid petroleum fractions to a lesser extent but activates the condensation leading to the formation of large amounts of carbenes/carboids and coke. Depending on introduction of various additives into the reaction system, the most significant differences are observed in the structural-group composition of resins in which the ratio of the СН3/СН2 groups decreases and the content of oxygen-containing S=O, С=О, and О–Н groups increases as the extent of condensation of their structure decreases. In contrast to resins, the degree of aromaticity and degree of condensation of asphaltenes increase owing to an increase in the number of hydrogen atoms in the structure of the rings. A common trend for asphaltenes and resins in all the experiments is an increase in the content of hydroxyl О–Н groups. The carbenes/carboids are characterized by relatively low content of aliphatic CH2 and CH3 groups and oxygen-containing СО groups and by high degrees of aromaticity and condensation of their structure.

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来源期刊
Petroleum Chemistry
Petroleum Chemistry 工程技术-工程:化工
CiteScore
2.50
自引率
21.40%
发文量
102
审稿时长
6-12 weeks
期刊介绍: Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas. Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.
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